/*
   * (C) Copyright 2000-2009
   * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   *
   * SPDX-License-Identifier:	GPL-2.0+
   */
  
  #ifndef _BOOTM_H
  #define _BOOTM_H
  
  #include <command.h>
  #include <image.h>
  
  #define BOOTM_ERR_RESET		(-1)
  #define BOOTM_ERR_OVERLAP		(-2)
  #define BOOTM_ERR_UNIMPLEMENTED	(-3)
  
  /*
   *  Continue booting an OS image; caller already has:
   *  - copied image header to global variable `header'
   *  - checked header magic number, checksums (both header & image),
   *  - verified image architecture (PPC) and type (KERNEL or MULTI),
   *  - loaded (first part of) image to header load address,
   *  - disabled interrupts.
   *
   * @flag: Flags indicating what to do (BOOTM_STATE_...)
   * @argc: Number of arguments. Note that the arguments are shifted down
   *	 so that 0 is the first argument not processed by U-Boot, and
   *	 argc is adjusted accordingly. This avoids confusion as to how
   *	 many arguments are available for the OS.
   * @images: Pointers to os/initrd/fdt
   * @return 1 on error. On success the OS boots so this function does
   * not return.
   */
  typedef int boot_os_fn(int flag, int argc, char * const argv[],
  			bootm_headers_t *images);
  
  extern boot_os_fn do_bootm_linux;
  int do_bootelf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
  void lynxkdi_boot(image_header_t *hdr);
  
  boot_os_fn *bootm_os_get_boot_func(int os);

  int bootm_host_load_images(const void *fit, int cfg_noffset);

  int boot_selected_os(int argc, char * const argv[], int state,
  		     bootm_headers_t *images, boot_os_fn *boot_fn);
  
  ulong bootm_disable_interrupts(void);

  /* This is a special function used by booti/bootz */

  int bootm_find_images(int flag, int argc, char * const argv[]);

  
  int do_bootm_states(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
  		    int states, bootm_headers_t *images, int boot_progress);

  void arch_preboot_os(void);

  /**
   * bootm_decomp_image() - decompress the operating system
   *
   * @comp:	Compression algorithm that is used (IH_COMP_...)
   * @load:	Destination load address in U-Boot memory
   * @image_start Image start address (where we are decompressing from)
   * @type:	OS type (IH_OS_...)
   * @load_bug:	Place to decompress to
   * @image_buf:	Address to decompress from
   * @image_len:	Number of bytes in @image_buf to decompress
   * @unc_len:	Available space for decompression
   * @return 0 if OK, -ve on error (BOOTM_ERR_...)
   */
  int bootm_decomp_image(int comp, ulong load, ulong image_start, int type,
  		       void *load_buf, void *image_buf, ulong image_len,
  		       uint unc_len, ulong *load_end);

  #endif